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Ukrainian football supporters of FC Dynamo Kiev, FC Karpaty Lviv, and FC Shakhtar Donetsk hold flares and shout slogans during the "March of Unity" in the western Ukrainian city of Lviv, July 22. Thousands of demonstrators took part in the march, organized prior to the Ukrainian Super Cup football match, calling for the union of the country.

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An Israeli artillery unit fires towards the Gaza Strip from a position near Israel's border with the coastal Palestinian enclave, July 21. FP contributor Daniel Byman looked at Israel's strategic logic in the ongoing Gaza conflict in a recent column for Foreign Policy, "An Eye for a Tooth."

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A relative of Shahed Qishtah, a nine-year-old Palestinian girl who was killed in an Israeli strike, left the Kamal Adwan hospital where he brought her in Beit Lahia, in the northern Gaza Strip, July 22. Colum Lynch covered recent casualties at a U.N.-run school in Gaza for FP's The Cable.

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A Syrian man walks on a street covered with dust following a reported air strike by government forces, in the old city of Aleppo, on July 21. Former U.S. Secretary of State Madeleine Albright and former British Foreign Secretary David Miliband discussed a potential humanitarian breakthrough in Syria in a recent column for Foreign Policy.

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Engineer Daniel Schubert holds lettuce at the German Aerospace Center in Bremen, Germany, July 21. Scientists and engineers from the German Aerospace Center are developing greenhouses for a potential Mars colony. The greenhouses will contain combined life-support systems which use recycled urine to manufacture fertilizer. The first greenhouse will be tested for nine months starting in 2016 in an inhospitable environment in the Antarctic.

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Members of the South African opposition party Economic Freedom Fighters (EFF) members set fire to paper and cardboard during clashes with South African police outside the Gauteng Legislature building in Johannesburg on July 22.

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Armed pro-Russian separatists stand guard in front of train cars containing the remains of victims from the downed Malaysia Airlines Flight MH17, at a railway station in the eastern Ukrainian town of Torez, July 21. FP contributor Mark Galeotti examined the consequences of the MH-17 shoot-down for the conflict in Ukraine in his article, "The Missile That Will End the War."

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A group of elderly women from a nearby village shelter from the rain after visiting the crash site of Malaysia Airlines flight MH17 in Grabovo, Ukraine, July 22. FP's Shane Harris reports on the questions still surrounding U.S. intelligence on the MH17 shoot-down.

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Residents of Lingayen, Philippines look at a green sea turtle accidentally caught in a fishing net, July 21. The fishermen who found the sea turtle informed local authorities, and later in the day the turtle was tagged and released into the sea. Sea turtles are protected under Philippine law and catching them is punishable by jail time.